p2r3/beheader

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1455 stars · 80 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A command-line tool that generates polyglot files - single files that are simultaneously valid images, videos, PDFs, ZIP archives, and HTML documents. It merges multiple media inputs into one file whose behavior changes depending on its extension.

Use cases

• create a file that is both an image and a video
• generate polyglot files for security research
• embed a PDF inside a PNG file
• combine zip archive and image into one file
• test file format parsers with polyglot inputs
• make a file that opens as HTML and plays as mp4

When to choose

• you need to create multi-format polyglot files for CTFs or security testing
• you want to study how parsers handle ambiguous file formats
• you need a fun demonstration of file format quirks

When to avoid

• you need lossless merging of your media files
• you need a cross-platform tool (it is Linux-focused and requires Bun, ffmpeg, ImageMagick, and mp4edit)
• you need production-grade file conversion rather than polyglot generation

Facets

cli-tool · maturity active

cli file-system image-processing video-processing audio-processing pdf compression files security developer-tools media cli bun polyglot-files file-format steganography ffmpeg image-magick linux

Member repositories

For agents

markdown · JSON · MCP: product_card(name="p2r3/beheader")